Transmission Running Warm/Hot - Diesel Bombers

Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

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Old 08-22-2017, 07:24 AM
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Join Date: Aug 2017
Posts: 3
Default Transmission Running Warm/Hot

Hey guys, got a potential issue that I can't figure out. Was towing my boat the other week and noticed my TFT got up to almost 205-210. Normally it runs 150-165 I think. So I changed the spin on filter thinking that it would lower those temps but it's still at 190-200 riding down the interstate the other day. I checked the fluid level on the dipstick when the truck was on and in park and the level is fine. Any thoughts why it would start running hot all of a sudden?

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